What is oral thrush?


Quick Answer

Thrush is an infection of the mouth caused by an overgrowth of candida fungus, otherwise known as yeast, according to WebMD. Candida is present in the mouth at all times; thrush occurs when there is an overgrowth due to a variety of causes.

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Full Answer

Adults and children with poor immune systems have higher risks of thrush than healthier individuals, states Mayo Clinic. Oral thrush causes creamy white lesions on the tongue and inner lining of the mouth. Healthy humans can often fight off candida infections easily; however, doctors may prescribe antifungal medications in the form of lozenges, tablets or liquids to help combat infections.

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